netdev - Re: [PATCH v6 00/46] CPU hotplug: stop

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Date:	Tue, 26 Feb 2013 03:15:05 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
CC:	tglx@...utronix.de, peterz@...radead.org, tj@...nel.org,
	oleg@...hat.com, paulmck@...ux.vnet.ibm.com, mingo@...nel.org,
	akpm@...ux-foundation.org, namhyung@...nel.org,
	rostedt@...dmis.org, wangyun@...ux.vnet.ibm.com,
	xiaoguangrong@...ux.vnet.ibm.com, rjw@...k.pl, sbw@....edu,
	fweisbec@...il.com, linux@....linux.org.uk,
	nikunj@...ux.vnet.ibm.com, linux-pm@...r.kernel.org,
	linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	walken@...gle.com, vincent.guittot@...aro.org
Subject: Re: [PATCH v6 00/46] CPU hotplug: stop_machine()-free CPU hotplug

On 02/22/2013 06:01 AM, Rusty Russell wrote:
> "Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com> writes:
>> Hi,
>>
>> This patchset removes CPU hotplug's dependence on stop_machine() from the CPU
>> offline path and provides an alternative (set of APIs) to preempt_disable() to
>> prevent CPUs from going offline, which can be invoked from atomic context.
>> The motivation behind the removal of stop_machine() is to avoid its ill-effects
>> and thus improve the design of CPU hotplug. (More description regarding this
>> is available in the patches).
> 
> If you're doing a v7, please put your benchmark results somewhere!
> 

Oh, I forgot to put them in v6! Thanks for reminding :-)
And yes, I'll have to do a v7 to incorporate changes (if any) to the new code
that went in during this merge window.

> The obvious place is in the 44/46.
>

Ok, will add it there. Thank you!
 
Regards,
Srivatsa S. Bhat

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